javascript 如何获取React中onCopy事件的复制值？

3lxsmp7m 于 2022-12-25 发布在 Java

关注(0)|答案(1)|浏览(173)

假设我有一个长字符串：

"Jackie has a very big chicken at his farm"

突出显示字符串中的“chicken”并按ctrl+C，
它将触发handleCopy函数，该函数传递到元素的onCopy属性中。我希望复制子字符串或字符串的值，在本例中为“chicken”。例如，

function handleCopy(event){
     //get the copied value here
}

<input value="Jackie has a very big chicken at his farm" onCopy={handleCopy} />

我如何能够在React中实现这一点？

JavaScript

来源：https://stackoverflow.com/questions/74896380/how-do-i-get-the-copied-value-on-oncopy-event-in-react

1条答案

按热度按时间

zengzsys1#

您可以对它使用copy event和getSelection方法，如docs示例所示...

- 示例如下**

const App = () => {
  function handleCopy(event) {
    const selection = document.getSelection();
    console.log(selection.toString())
  }
  return (
    <input
      defaultValue="Jackie has a very big chicken at his farm"
      onCopy={handleCopy}
    />
  );
};

ReactDOM.createRoot(document.getElementById("root")).render(<App />);

<div id="root"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/18.1.0/umd/react.development.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/18.1.0/umd/react-dom.development.js"></script>

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javascript 如何获取React中onCopy事件的复制值？

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